Hyundai Accent GS: Hi, I have a friend with a 2001 Hyundai Hi, I have a friend with a 2001 Hyundai Accent GS with 1) no right rear tail or side indicator lights, 2) when the l/h turn signal is on the left rear tail lights, turn lamp, and side indicator all bl. May 24, 2008 · Both were unable to get rid of the CEL. Now my question is what is the wiring diagram for the O2 sensor? There are 4 wires and this is the info I found with a volt meter. Black = 0V I have an accent. More pix of beta swap Latest Hyundai News: Top 10 Best Interiors of 2018: WardsAuto.. Find great deals on eBay for hyundai accent ecm. Shop with confidence..